Change background_color programmatically

I'm not sure what is wrong, I have searched the forums and google and haven't found the answer.
At the click of a button, using when-button-pressed I am trying to change the color of a text_item.
This is my code:
set_item_property(:c_last_text, background_color, white);
This gives me an error 'identifiers 'white' msy be declared'
Can someone tell me what I am doing wrong, I tried to follow the online documentation and don't seem to be seeing whats wrong,
Thanks.

Sorry...
Set_Item_property('BLOCK_NAME.ITEM_NAME', BACKGROUND_COLOR, 'white') isn't work.
But
Set_Item_property('BLOCK_NAME.ITEM_NAME', BACKGROUND_COLOR, 'r255g255b255' );
work fine!

Similar Messages

Changing resolution programmatically

Hello all,
Does anybody know how to change resolution programmatically using java.
Even in C or C++ so that i can use JNI.
I can get the resolution by
java.awt.Toolkit.getDefaultToolkit().getScreenSize();
but i am not able to set the resolution. Please suggest the solution for java 1.3

Not currently possible. Planned for a future release.
Regards,
Jerry

How to change Enumerator programmatically in LabVIEW called in Teststand

How to change Enumerator programmatically in LabVIEW called in Teststand ?
I know that Enumerator cannot be changed programmatically since the data type itself different from other controls like Ring and Combo box.
My application involves in Property loader which will load the list of names to Enumerator during Initialization. And the same shall be used by operator to select in further steps for testing. I tried with Ring and combo box but it doesn't works because its not giving dropdown option in TestStand Steps to select the name.
I need a drop down and also programmatically changing the value of the same variable. I had gone through all forum solutions regarding Enum, but I couldn't get any work around for this.
Please suggest me a solution or best work around to do this.
Thanks,
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L&T Limited
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Can you provide an example of how a ring control/combo box does not work? This should be the way to do what you want unless I am misunderstanding exactly what you want to do. In theory you could have a dynamic enumerator type, but there are lots of hoops to jump through using VI server and scripting and it is not worth the effort. Aesthetically, you can make the ring control and enumerated data type look exactly the same. I would be using a ring control.
Please post an example of how it does not work.

Changing a Programmatic View Object's query at run-time

Hi,
I've created a programmatic View Object using the information in '35.9.3 Key Framework Methods to Override for Programmatic View Objects' in the Oracle Middleware Fusion Guide and bound it to a BarChart. This has worked fine using the following:
String myColumn = "Quant1";
protected void create() {
getViewDef().setQuery(null);
getViewDef().setSelectClause(null);
setQuery(null);
String myQuery = "SELECT Service as MyService, " + myColumn + " as MyValue FROM ColumnTestTable WHERE 1 = 1";
getViewDef().setQuery(myQuery);
setQuery(myQuery);
I also have my data updating automatically. I have public properties in my viewObjImpl class which I can set and update the value of myColumn. I then thought it would just be a case of re-calling the create() method and the SQL would be updated and my chart would auto-update using the new column to select it's values, the value of the property updates and the create method is called but the chart doesn't display any different data and stops auto-updating. Does anybody know if this is possible and if so what I may have missed?
Cheers, Tom

Hi Timo,
I moved everything to a different public method and solved the problem by firing the execute() method which I hadn't been doing previously and the chart updates with the correct data.
However, once I execute the SQL my chart stops auto-updating with changes to the data in the database - do you know how I update the SQL query but keep my chart auto-updating? Perhaps I have to re-register for the registerDatabaseChangeListener for the query collection?
Thanks in advance, Tom

Tab control page label change color programmatically

Hi everybody!
I have a question about a tab control.
I'm trying to figure out a way to programmatically change the properties of the tab labels so the selected tab's label looks different to the others.
I'd like to do this by changing aspects of it's font and it's color. But I can't find out how to access it either directly or by reference.
I can get at the label string so if all else fails I could make the selected one all capitals!
Am I missing something, or is this one of those things which can't be done?
I'm using Labview 11.
Regards,
Jonathan.

The link still works for me!
Search the forum for "Tab Color".
This does not change the text, but the tab color which is what I do to high light the selected tab.
I use dark gray and light gray to help the user tell which tab is "active".
Not exactly what you wanted.
http://forums.ni.com/t5/LabVIEW/How-can-I-change-the-font-color-size-of-tab-controls/m-p/967920/high...
http://forums.ni.com/t5/LabVIEW/Programmatically-changing-page-color-in-a-tab-control/m-p/840699/hig...
http://forums.ni.com/t5/LabVIEW/tab-control-color/m-p/3062557/highlight/true#M873360
Omar

Can change "place" programmatically?

I have a form that has multiple pages. During its use a modified copy of the form may be emailed. Before it is emailed all of the information (controls, text data) on page 1 is hidden and some on page 2.
If I set the "place" (from the pagination tab of the subform) to "following previous" I get a one page email attachment -- this is what I want. in essence all of page one stuff is hidden and since its all flowed, the stuff on page two flows up onto page one. BUT... before emailing the stuff starts on the bottom of page 1.
However, I also need the data on page 2 to start at the top of page 2 when it is being worked with before the email.... and to do this requires a different "place" setting. (if I set it any other way than above, the email becomes a blank page followed by a page with the data on it. I do not want the blank page and I do not want the stuff from page 2 to flow up on to the page one before the email.
If I could set place programmatically, I could change it before emailing... and this would be great.
but I can't find the javascript to do this... sounds like it would be a simple statement...

Just want to add something onto cor-el answer. If you don't see the "Reload" button in the "Customize" window, you'd have to drag the "Reload" button from the location bar into the window, from there, you can drag it to anywhere you like. I found this out because I didn't see the "Reload" button in the "Customize" window and thought I couldn't do anything about it.

Change Background_Color with set_*_property doesn´t work with NLS_LANG UTF8

Hi @all,
we changed our forms from we8iso8859p1 to utf8 and now we noticed that changing of background colors from canvases, items etc don´t work anymore.
I tried set_canvas_property, set_va_property, set_item_property.
When I start the form with NLS_LANG: GERMAN_GERMANY.WE8ISO8859P1 changing the colors works.
When I start the form with NLS_LANG: GERMAN_GERMANY.UTF8 changing the color don´t work.
We use Forms Version 6.0.8.11.3.
Are there any workarounds to change the colors when nls is set to utf8?
Thanks
Thomas

Hi,
I discovered following:
- if name of OU in AD is without space (e.g. test,sample) so DN record is test\,sample and user is moved into this OU.
- if name of OU in AD is with space (e.g. test, sample) so DN record is still test\,sample and user isn't moved.
So problem is with empty space. How can I preserve space in DN name? I found something in documentation but I doesn't work for me.
+Special Characters in FieldValues
If you have a field value with a comma (,) or double quote (") character, or you want to preserve leading or trailing spaces, you must embed your field value within a pair of double quotes ("field_value"). You then need to replace double quotes in the field value with two double quote (") characters. For example, "John ""Johnny"" Smith" results in a field value of John "Johnny" Smith. +
(from IDM Business Administrator's Guide, p.77)
Guided this information I put value of slctOrganizationalUnitUzivatele into "". But this didn't work. Is good idea to have space in DN?
Thanks for help.
Petr
Edited by: petrklinkovsky on Sep 10, 2009 5:06 AM

Change item programmatic skin at runtime

AS3 lets you programatically skin a class. For example, on
MenuBar control. you can tell an instance of a menuBar which skin
to use when a mouse clicks on it, with the following line:
myMenuBar.SetStyle("itemDownSkin",
myProgrammaticSkinClassName);
However, let's say you want to change to another class after
the menubar has already been created? At this point the SetStyle
function has no effect as the menubar has continues to display a
cached appearance of itself. It seems your only option is to
destroy the existing control and recreate it with the new style.
Is there a more straightforward way to dynamically change the
skin of a control after it has been created?
Thanks to anyone out there! ed

Hello,
You cannot change the width of a field at runtime.
You can use the elasticity property. The field size will be
increased according to its content.
Regards

Change font programmatic in a table

Hey,
is it possible to change font in a table at Runtime. In my application I have various lines of data representing in a table.
Problem: How many lines to initialize with different font and font-size.
Thanks for help
geotos

Hello Geotos,
Unfortunately, the current version of LabVIEW does not support this feature.
But you are not the first requesting this functionality, so chances are very good that it is included in the next release (LabVIEW 8).
Best regards
Ingo Schumacher
Systems Engineer Sound&VibrationNational Instruments Germany

Changing cm_created programmatically via Java API

Hi!
Our problem is simple: we need to change the cm_created system km property via the rf api's.
We have already set the property as not read-only and maintainable - but still the api throws a WcmException containing the following error message: "Read-only property: created".
My gut feeling is that even though We have altered the property under property metadata, the repository framework still denies any changes due to the fact that it is a system property. (And yes, We have rebooted the server!).
Any info and/or ideas regarding the problem above?
Thanks in advance,
/Jim

Hi,
Check this:
https://forums.sdn.sap.com/thread.jspa?threadID=285425
Regards,
Praveen Gudapati

Can I programmatically change my USB Dev assignment?

I have a production test program that uses two USB 6501 DAQs. Currently during development they're assigned Dev1 and Dev2 in MAX and my DAQmx drivers are set up for those addresses. This test fixture, when deployed, will be connected and disconnected from the production equipment, and other USB devices may be plugged into and unplugged from the production test computer in the interim, then these will be plugged in again when it's time to test this product, and the Dev assignments are likely to be different from Dev1 and Dev2. I know I can change them in MAX, but that's not practical. I want this problem and a solution to be transparent to the people using the test program, and I'd like to reassign or change Devs programmatically. Is this possible? If so, how?

System Configuration VIs will allow you to chance MAX device names
But...
I had a similar problem with 25 identical test sets each with 6 USB power supplies. Power supplies are swapped out for calibration just about weekly. The identifiers in MAX needed to be changed each time based off of their serial number.
Years ago I attempted to modify the setting in MAX and had some success using the now deprecated “MAX Copy Configuration” VI, but opted instead to query the test set to find the power supplies and what their references names where and store the device names. Then the program could care less what MAX had for their device names. There was some extra code to figure out which supply was which (1-6) that depends on how YOU are using your devices.
We have adopted a similar methodology for other test sets for ALL our instrument device references (VISA, DAQmx, GPIB, USB, PXI, LXI). Find what’s there and use whatever name MAX has for and not try to change it.
See the
System Configuration VI
GPIB Find listeners
VISA Find Resource
niModInst
Depending on the system, I use some combination these to find my instruments.
I also use Mico Soft’s DevCon function to find devices on my test sets.
Omar

Programmatically changing chart history length

I'm creating a VI where the user can choose the data sample rate via the wait(ms) used in a while loop. However changing the sample rate effects the time length being displayed on the chart. This is dependent on the chart history length, originally I thought I could just change this programmatically, but the history length doesn't appear on the property node.
I've had a look at the advice in the ni support section:
http://digital.ni.com/public.nsf/allkb/E9784F413A2269E086256F3A0064C8BB
This method seems a bit messy (especially when I'll be doing this for a number of charts), although I couldn't open the example as its v7.1 and I have v7.0.
Is there anything I can do?
Help would be appreciated (deadlines approaching)

The entire point of using a chart is that you update only the last value, so there is no point in writing the history data every loop. For that you can use a graph, which will allow you to do this without using a property node.
The history length is not supposed to control how much data is currently displayed on the screen, but how many points are kept in the buffer, so you can scroll back and see them. When you change the length of the history data array, the chart doesn't seem to like it. It starts acting a bit crazy. Also, keep in mind that there is no point in displaying 1000 points if your chart is 600 pixels wide.
There are problems with what you want to do, like if you add points, where do the extra points come from, or since a chart uses a constant multiplier, what happens to the old data when you change it and so on.
I've modified your example slightly, so that it doesn't write to the property every time and so it handles the enlarging the history buffer case, but it's still buggy and needs more work.
The main problem is that the History property doesn't change the chart length. If I understood you correctly, and you want to constantly display the last X seconds, I still think your only viable option is using a graph. The transition should be fairly simple and if you use a shift register it can handle it.
Try to take over the world!
Attachments:
chart.vi ‏63 KB

How do I detect (and better yet change) the mechanical action of a Boolean programmatically?

I am trying to reference controls on a panel of another VI programmatically. When I parse the VI it is not running, so I do not get errors if I encounter a Boolean in latch mode by reading the value. Later, when it is running and I try to read or write to that Boolean it generates an error, but that is not when I want to handle the error. Is there some way to read what the mechanical action of a Boolean is? Is it possible to change it programmatically? I can not change anything on the target VI except the mechanical action, no adding event blocks looking for mouse clicks, etc.
Thanks,
--Matt

mviele wrote:
II can not change anything on the target VI except the mechanical action, no adding event blocks looking for mouse clicks, etc.
Changing the mechanical action is a significant edit change, so why are you arbitrarily disallowing anything else?
Easiest would be to exclusively use "switch action" booleans and simulate the latch action in code, e.g. reset it to false elsewhere using a local variable.
LabVIEW Champion . Do more with less code and in less time .

Composite control - change text property of textbox from .cs file

Hi All,
I have created a composite control with dropdowns and hiddenfield for datepicker. Now when I change the value of dropdown from browser - client side then its value is retained on postback. But when I change value programmatically its not reflected on
screen.
using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.ComponentModel;
using System.Drawing;
using System.Web;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.WebControls;
using Microsoft.Practices.EnterpriseLibrary.Validation.Validators;
namespace GOV.Framework.Portal.Controls
/// <summary>
/// Simple DateTimePicker control that uses jQuery UI DatePicker to pop up
/// a date, time or both picker.
/// </summary>
[ToolboxBitmap(typeof(System.Web.UI.WebControls.Calendar)), DefaultProperty("SelectedValue"),
ToolboxData("<{0}:DateTimePicker runat=\"server\"></{0}:DateTimePicker>"), PersistenceMode(PersistenceMode.InnerProperty)]
public class DateTimePicker : WebControl
#region "Global Variables"
public enum DisplayControls
TextBox,
Dropdown
public enum DisplayModes
Button,
ImageButton,
AutoPopup,
Inline,
public enum DisplayTypes
Time,
Date,
DateTime
public enum DisplayMonthTypes
Full,
Short
private enum DisplayYearTypes
Full,
Short
private DropDownList ddlDay = new DropDownList();
private DropDownList ddlMonth = new DropDownList();
private DropDownList ddlYear = new DropDownList();
private TextBox txtDate = new TextBox();
private Label lblMsg = new Label();
private System.Web.UI.WebControls.Image imgCal = new System.Web.UI.WebControls.Image();
private HiddenField hdnDate = new HiddenField();
private DisplayModes _DisplayMode = DisplayModes.ImageButton;
private DisplayControls _DisplayControl = DisplayControls.TextBox;
private DisplayTypes _DisplayType = DisplayTypes.DateTime;
private int _StepMinutes = 1;
private int _StepHours = 1;
private DateTime? _MinDate = null;
private DateTime? _MaxDate = null;
private string _OnClientSelect = "";
private string _ButtonImage = "../Images/calendar.png";
private string _CalendarCss = "WebResource";
private string _CalendarJs = "../scripts/timepicker.js";
private DisplayMonthTypes _DisplayMonthType = DisplayMonthTypes.Full;
private DisplayYearTypes _DisplayYearType = DisplayYearTypes.Full;
private int _minYear = DateTime.Now.Year - 25;
private int _maxYear = DateTime.Now.Year;
private int _minMonth = 1;
private int _maxMonth = 31;
private int _minDay = 1;
private int _maxDay = 28;
private string _dateControlClientId = string.Empty;
DateTime? _SelectedDate = null;
private bool _DisplayMessageLabel = true;
private short _tabIndex;
private const string vwst_SelectedDate = "_SelectedDate";
#region "ErrorMessages"
private const string SelectedDate_GreaterThan_MaxDate = "SelectedDate can not be greater than MaxDate";
private const string MaxDate_LessThan_SelectedDate = "MaxDate can not be less than SelectedDate";
private const string SelectedDate_LessThan_MinDate = "SelectedDate can not be less than MinDate";
private const string MinDate_GreaterThan_SelectedDate = "MinDate can not be greater than SelectedDate";
#endregion
#endregion
#region "Properties"
#region "Private Properties"
[Description("Determines display full or short(yy) year")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayTypes), "string")]
private DisplayYearTypes DisplayYearType
get
return _DisplayYearType;
set
_DisplayYearType = value;
[Description("Determines minimum year to be displayed in dropdown : Default currentyear - 25")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayTypes), "int")]
private int MinYear
get
if (MinDate != null)
_minYear = MinDate.Value.Year;
else
_minYear = DateTime.Now.Year - 25;
return _minYear;
//set
// _minDisplayYear = value;
[Description("Determines maximum year to be displayed in dropdown : Default currentyear")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayTypes), "int")]
private int MaxYear
get
if (MaxDate != null)
_maxYear = MaxDate.Value.Year;
else
_maxYear = DateTime.Now.Year;
return _maxYear;
//set
// _maxDisplayYear = value;
private string DateControlClientId
get
if (DisplayControl == DisplayControls.Dropdown)
_dateControlClientId = hdnDate.ClientID;
else
_dateControlClientId = txtDate.ClientID;
return _dateControlClientId;
[Description("Determines minimum month of min date : default 1")]
[Category("DateTime Selection"), DefaultValue(1)]
private int minMonth
get
if (MinDate != null)
_minMonth = MinDate.Value.Month;
else
_minMonth = 1;
return _minMonth;
[Description("Determines max months of max date: Default 12")]
[Category("DateTime Selection"), DefaultValue(12)]
private int maxMonth
get
if (MaxDate != null)
_maxMonth = MaxDate.Value.Month;
else
_maxMonth = 1;
return _maxMonth;
[Description("Determines minimum day : Defualt 1")]
[Category("DateTime Selection"), DefaultValue(1)]
private int minDay
get
if (MinDate != null)
_minDay = MinDate.Value.Day;
else
_minDay = 1;
return _minDay;
[Description("Determines max day: Defualt last day of max month")]
[Category("DateTime Selection"), DefaultValue(30)]
private int maxDay
get
if (MaxDate != null)
_maxDay = MaxDate.Value.Day;
else
_maxDay = DateTime.DaysInMonth(MaxYear, maxMonth);
return _maxDay;
#endregion
#region "Public Properties"
/// <summary>
/// The currently selected datetime
/// </summary>
[Category("DateTime Selection")]
public DateTime? SelectedValue
get
DateTime dt = new DateTime();
if (DisplayControl == DisplayControls.TextBox && txtDate.Text != "")
DateTime.TryParse(txtDate.Text, out dt);
else if (DisplayControl == DisplayControls.Dropdown && hdnDate.Value != "")
DateTime.TryParse(hdnDate.Value, out dt);
if (dt != null && dt != new DateTime())
_SelectedDate = dt;
else
_SelectedDate = null;
return _SelectedDate;
set
if (!value.HasValue)
txtDate.Text = "";
hdnDate.Value = "";
else
if (value != null && MinDate != null && value < MinDate)
throw new ArgumentOutOfRangeException("SelectedValue", SelectedDate_LessThan_MinDate);
if (value != null && MaxDate != null && value > MaxDate)
throw new ArgumentOutOfRangeException("SelectedValue", SelectedDate_GreaterThan_MaxDate);
string dateFormat = this.DateTimeFormat;
//if ( dateFormat == "Auto")
// dateFormat = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;
if (DisplayControl == DisplayControls.TextBox)
txtDate.Text = value.Value.ToString(dateFormat);
else if (DisplayControl == DisplayControls.Dropdown)
hdnDate.Value = value.Value.ToString(dateFormat);
_SelectedDate = value;
if (DisplayControl == DisplayControls.Dropdown)
setDropDownValue(value);
[Description("Determines display textbox or dropdowns")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayModes), "TextBox")]
public DisplayControls DisplayControl
get { return _DisplayControl; }
set { _DisplayControl = value; }
[Description("Determines how the datepicking option is activated")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayModes), "ImageButton")]
public DisplayModes DisplayMode
get { return _DisplayMode; }
set { _DisplayMode = value; }
[Description("Determines what datetimepicker should return")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayTypes), "DateTime")]
public DisplayTypes DisplayType
get
return _DisplayType;
set
_DisplayType = value;
[Description("Increment minute factor when using the time picker.")]
[Category("DateTime Selection"), DefaultValue(1)]
public int StepMinutes
get
return _StepMinutes;
set
_StepMinutes = value;
[Description("Increment hour factor when using the time picker.")]
[Category("DateTime Selection"), DefaultValue(1)]
public int StepHours
get
return _StepHours;
set
_StepHours = value;
private string _DateTimeFormat = CultureInfo.CurrentCulture != null ? CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern : "dd/MM/yyyy";
[Description("Determines the Date Format used. Auto uses CurrentCulture.DateTimeFormat.ShortDatePattern. Format: MM month, dd date, yyyy year symbol")]
[Category("DateTime Selection"), DefaultValue("dd/MM/yyyy")]
public string DateTimeFormat
get
return _DateTimeFormat;
set
_DateTimeFormat = value;
[Description("Minumum allowable date. Leave blank to allow any date")]
[Category("DateTime Selection"), DefaultValue(typeof(DateTime?), null)]
public DateTime? MinDate
get
return _MinDate;
set
if (value != null && SelectedValue != null && value > SelectedValue)
throw new ArgumentOutOfRangeException("MinDate", MinDate_GreaterThan_SelectedDate);
_MinDate = value;
[Description("Maximum allowable date. Leave blank to allow any date.")]
[Category("DateTime Selection"), DefaultValue(typeof(DateTime?), null)]
public DateTime? MaxDate
get
return _MaxDate;
set
if (value != null && SelectedValue != null && value < SelectedValue)
throw new ArgumentOutOfRangeException("MaxDate", MaxDate_LessThan_SelectedDate);
_MaxDate = value;
[Description("Client event handler fired when a date is selected")]
[Category("DateTime Selection"), DefaultValue("")]
public string OnClientSelect
get
return _OnClientSelect;
set
_OnClientSelect = value;
[Description("Url to a Calendar Image. Applies only if the DisplayMode = ImageButton")]
[Category("DateTime Resource"), DefaultValue("../Images/calendar.png")]
public string ButtonImage
get { return _ButtonImage; }
set { _ButtonImage = value; }
[Category("DateTime Resource"), Description("The CSS that is used for the calendar or empty for default."), DefaultValue("WebResource")]
public string CalendarCss
get { return _CalendarCss; }
set { _CalendarCss = value; }
[Description("Location for the calendar JavaScript or empty for default.")]
[Category("DateTime Resource"), DefaultValue("../scripts/timepicker.js")]
public string CalendarJs
get { return _CalendarJs; }
set { _CalendarJs = value; }
[Description("Determines what to Display full Month name or short month name")]
[Category("DateTime Selection"), DefaultValue(typeof(DisplayTypes), "string")]
public DisplayMonthTypes DisplayMonthType
get
return _DisplayMonthType;
set
_DisplayMonthType = value;
[Description("Display static label for msg below date control")]
[Category("DateTime Selection"), DefaultValue(true)]
public bool DisplayMessageLable
get { return _DisplayMessageLabel; }
set { _DisplayMessageLabel = value; }
[Bindable(true)]
[DefaultValue("false")]
public override short TabIndex
get
return _tabIndex;
set
_tabIndex = value;
ddlDay.TabIndex = value;
ddlMonth.TabIndex = value;
ddlYear.TabIndex = value;
imgCal.TabIndex = value;
#endregion
#endregion
#region "Events"
public DateTimePicker()
this.Width = Unit.Pixel(80);
/// <summary>
/// Load all controls
/// </summary>
/// <param name="e"></param>
protected override void OnInit(EventArgs e)
base.OnInit(e);
//Controls.Clear();
//CreateAndAddControls();
/// <summary>
/// Add Child controls - Dropdowns and textbox;
/// </summary>
protected override void CreateChildControls()
base.CreateChildControls();
Controls.Clear();
CreateAndAddControls();
/// <summary>
/// Load all controls
/// </summary>
/// <param name="e"></param>
protected override void OnLoad(EventArgs e)
base.OnLoad(e);
if (DisplayControl == DisplayControls.Dropdown)
if (ddlDay.Items.Count == 0 || ddlMonth.Items.Count == 0 || ddlYear.Items.Count == 0 || !Page.IsPostBack)
FillDropdowns();
generateDisplayMessage();
protected override void LoadViewState(object savedState)
base.LoadViewState(savedState);
protected override void LoadControlState(object savedState)
base.LoadControlState(savedState);
protected override object SaveViewState()
if (HasControls() && Page.IsPostBack)
ddlDay.SelectedValue = "11";
object obj = base.SaveViewState();
return obj;
protected override void TrackViewState()
base.TrackViewState();
/// <summary>
/// Most of the work happens here for generating the hook up script code
/// </summary>
/// <param name="e"></param>
protected override void OnPreRender(EventArgs e)
base.OnPreRender(e);
// Register resources
this.RegisterResources();
string script = GenerateScript();
Page.ClientScript.RegisterStartupScript(this.GetType(), "_cal" + this.ID, script, true);
/// <summary>
/// Render Control
/// </summary>
/// <param name="writer"></param>
public override void RenderControl(HtmlTextWriter writer)
if (this.DisplayMode != DisplayModes.Inline)
base.RenderControl(writer);
else
writer.Write("<div id='" + this.ClientID + "Div'></div>");
if (HttpContext.Current == null)
if (this.DisplayMode == DisplayModes.Button)
writer.Write(" <input type='button' value='...' style='width: 20px; height: 20px;' />");
else if ((this.DisplayMode == DisplayModes.ImageButton))
string img;
if (this.ButtonImage == "WebResource")
img = this.Page.ClientScript.GetWebResourceUrl(this.GetType(), "jQueryDatePicker.Resources.calendar.png");
else
img = this.ResolveUrl(this.ButtonImage);
writer.AddAttribute(HtmlTextWriterAttribute.Src, img);
writer.AddAttribute("hspace", "2");
writer.RenderBeginTag(HtmlTextWriterTag.Img);
writer.RenderEndTag();
/// <summary>
/// Render Control
/// </summary>
/// <param name="writer"></param>
protected override void Render(HtmlTextWriter writer)
RenderControls(writer);
#endregion
#region "Methods"
/// <summary>
/// Set properties of control
/// </summary>
private void CreateAndAddControls()
txtDate.ID = "_txtDate";
txtDate.CssClass = "dpDate";
ddlDay.ID = "_ddlDay";
ddlMonth.ID = "_ddlMonth";
ddlYear.ID = "_ddlYear";
imgCal.ID = "_imgCal";
imgCal.CssClass = "trigger";
imgCal.ImageUrl = this.ButtonImage;
//imgCal.Visible = false;
hdnDate.ID = "_hdnDate";
lblMsg.ID = "_lblMsg";
lblMsg.CssClass = "MsgLabel";
if (DisplayControl == DisplayControls.Dropdown)
txtDate.Visible = false;
this.Controls.Add(ddlDay);
this.Controls.Add(ddlMonth);
this.Controls.Add(ddlYear);
this.Controls.Add(hdnDate);
else
txtDate.Visible = true;
this.Controls.Add(txtDate);
this.Controls.Add(imgCal);
this.Controls.Add(lblMsg);
/// <summary>
/// Add Controls to the control
/// </summary>
private void RenderControls(HtmlTextWriter writer)
//if (ChildControlsCreated)
// return;
AddAttributesToRender(writer);
writer.AddAttribute(HtmlTextWriterAttribute.Class, "datePickerTable", false);
writer.RenderBeginTag(HtmlTextWriterTag.Table);//start of table
writer.RenderBeginTag(HtmlTextWriterTag.Tr);//start of tr1
if (DisplayControl == DisplayControls.Dropdown)
writer.RenderBeginTag(HtmlTextWriterTag.Td);
ddlDay.RenderControl(writer);
writer.RenderEndTag();
writer.RenderBeginTag(HtmlTextWriterTag.Td);
ddlMonth.RenderControl(writer);
writer.RenderEndTag();
writer.RenderBeginTag(HtmlTextWriterTag.Td);
ddlYear.RenderControl(writer);
writer.RenderEndTag();
writer.RenderBeginTag(HtmlTextWriterTag.Td);
hdnDate.RenderControl(writer);
writer.RenderEndTag();
else
writer.RenderBeginTag(HtmlTextWriterTag.Td);
txtDate.RenderControl(writer);
writer.RenderEndTag();
writer.RenderBeginTag(HtmlTextWriterTag.Td);
//Control ltrl1 = new LiteralControl();
//writer.AddStyleAttribute(HtmlTextWriterStyle.Display, "None");
//writer.RenderBeginTag(HtmlTextWriterTag.Div);
////ltrl1.RenderControl(writer);
//imgCal.RenderControl(writer);
//writer.RenderEndTag();//end of div
writer.Write("<div style=\"display:none\">");
imgCal.RenderControl(writer);
writer.Write("</div>");
writer.RenderEndTag();
writer.RenderEndTag();//end of tr1
writer.RenderBeginTag(HtmlTextWriterTag.Tr);//start of tr
writer.AddAttribute(HtmlTextWriterAttribute.Colspan, "4", false);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
lblMsg.RenderControl(writer);
writer.RenderEndTag();
writer.RenderEndTag();// end of tr2
writer.RenderEndTag();// end of table
//string newTable = "<table class='datePickerTable'";
//string endTable = "</table>";
//string newTr = "<tr>";
//string endTr = "</tr>";
//string newTd = "<td>";
//string endTd = "</td>";
////Controls.Clear();
//InitControls();
//Controls.Add(new LiteralControl(newTable + newTr + newTd));
//if (DisplayControl == DisplayControls.Dropdown)
// Controls.Add(ddlDay);
// Controls.Add(new LiteralControl(endTd + newTd));
// Controls.Add(ddlMonth);
// Controls.Add(new LiteralControl(endTd + newTd));
// Controls.Add(ddlYear);
// Controls.Add(new LiteralControl(endTd + newTd));
//Controls.Add(txtDate);
//Controls.Add(hdnDate);
//Controls.Add(new LiteralControl(endTd + newTd));
//Controls.Add(new LiteralControl("<div style=\"display:none\">"));
//Controls.Add(imgCal);
//Controls.Add(new LiteralControl("</div>"));
//Controls.Add(new LiteralControl(endTd + endTr));
//Controls.Add(new LiteralControl(newTr + "<td colspan=4>"));
//Controls.Add(lblMsg);
//Controls.Add(new LiteralControl(endTd + endTr + endTable));
/// <summary>
/// Code that embeds related resources (.js and css)
/// </summary>
/// <param name="scriptProxy"></param>
protected void RegisterResources()
// Load the calandar script
string script = this.CalendarJs;
// Load jQuery Calendar Scripts
if (script == "WebResource")
Page.ClientScript.RegisterClientScriptResource(this.GetType(), "jQueryDatePicker.Resources.ui.datepicker.js");
else if (!string.IsNullOrEmpty(script))
Page.ClientScript.RegisterClientScriptInclude(this.GetType(), "__jqueryCalendar", this.ResolveUrl(script));
// Load the related CSS reference into the page
script = this.CalendarCss;
if (script == "WebResource")
script = Page.ClientScript.GetWebResourceUrl(this.GetType(), "jQueryDatePicker.Resources.ui.datepicker.css");
else if (!string.IsNullOrEmpty(script))
script = this.ResolveUrl(this.CalendarCss);
// Register Calendar CSS 'manually'
string css = @"<link href=""" + script + @""" type=""text/css"" rel=""stylesheet"" />";
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "_calcss", css, false);
/// <summary>
/// Converts a date to a JavaScript date string in UTC format
/// </summary>
/// <param name="date"></param>
/// <returns></returns>
private static string EncodeJsDate(DateTime date)
return "new Date(\"" + date.ToString("U") + " UTC" + "\")";
/// <summary>
/// Generate Javascript for Datepicker plugin
/// </summary>
/// <returns></returns>
private string GenerateScript()
// To capture and map the various option parameters
StringBuilder sbOptions = new StringBuilder(512);
sbOptions.Append("{");
//jQuey Script
StringBuilder sbStartupScript = new StringBuilder(400);
sbStartupScript.AppendLine("jQuery(document).ready( function() {");
string dateFormat = this.DateTimeFormat;
if (!string.IsNullOrEmpty(dateFormat))
dateFormat = this.DateTimeFormat.Replace("MMM", "M").Replace("MM", "mm");
sbOptions.Append("dateFormat: '" + dateFormat + "'");
//string onSelect = this.OnClientSelect;
if (this.DisplayMode == DisplayModes.Button)
sbOptions.Append(",showOnFocus: false, showTrigger: '<button type=\"button\" class=\"trigger\">...</button>'");
else if (this.DisplayMode == DisplayModes.ImageButton)
string img = this.ButtonImage;
if (img == "WebResource")
img = Page.ClientScript.GetWebResourceUrl(this.GetType(), "jQueryDatePicker.Resources.calendar.png");
else
img = this.ResolveUrl(this.ButtonImage);
sbOptions.Append(",showOnFocus: false, showTrigger: '#" + imgCal.ClientID + "'");
sbOptions.Append(", onSelect: DateSelectedFromCalendar ");
if (this.MinDate.HasValue)
sbOptions.Append(",minDate: new Date(" + MinDate.Value.Year.ToString() + "," + (MinDate.Value.Month - 1).ToString() + "," + MinDate.Value.Day.ToString() + ")");
if (this.MaxDate.HasValue)
sbOptions.Append(",maxDate: new Date(" + MaxDate.Value.Year.ToString() + "," + (MaxDate.Value.Month - 1).ToString() + "," + MaxDate.Value.Day.ToString() + ")");
sbOptions.Append(",yearRange:' " + this.MinYear.ToString() + ":" + this.MaxYear.ToString() + "'");
//end of options
sbOptions.Append("}");
// Write out initilization code for calendar
if (this.DisplayMode != DisplayModes.Inline)
sbStartupScript.AppendLine("var cal = jQuery('#" + this.DateControlClientId + "').datepick(" + sbOptions.ToString() + ");");
else
sbStartupScript.AppendLine("var cal = jQuery('#" + this.ClientID + "Div').datepick(" + sbOptions.ToString() + ");");
sbStartupScript.AppendLine("var dp = jQuery.datepicker;");
if (this.SelectedValue.HasValue && this.SelectedValue.Value > new DateTime(1900, 1, 1, 0, 0, 0, DateTimeKind.Utc))
sbStartupScript.AppendLine("dp.setDateFor(cal[0],new Date('" + txtDate.Text + "'));");
sbStartupScript.AppendLine("dp.reconfigureFor(cal[0]);");
//******************* When dropdown changes then reflect it in calendar
if (DisplayControl == DisplayControls.Dropdown)
sbStartupScript.AppendLine("\r\n\r");
sbStartupScript.Append("$('#" + ddlDay.ClientID);
sbStartupScript.Append(",#" + ddlMonth.ClientID);
sbStartupScript.Append(",#" + ddlYear.ClientID + "').change(function() {");
// disable months and days when they are less then day months of minimum date
sbStartupScript.Append("$ddlDay=$('#" + ddlDay.ClientID + "');");
sbStartupScript.Append("$ddlMonth=$('#" + ddlMonth.ClientID + "');");
sbStartupScript.Append("$ddlYear=$('#" + ddlYear.ClientID + "');");
sbStartupScript.AppendLine("var minYear=" + this.MinYear.ToString() + ";");
///disable months of minimum year which are less then minumum date month
sbStartupScript.AppendLine("if($ddlYear.val()<=minYear && $('#" + this.DateControlClientId + "').val!=''){ alert('true');");
sbStartupScript.AppendLine("var minMonth=" + this.minMonth.ToString() + ";");
sbStartupScript.AppendLine("if($ddlMonth.val()<=minMonth){");//start of if of minMonth
sbStartupScript.AppendLine("$ddlMonth.val(minMonth);");
sbStartupScript.AppendLine("var minDay=" + this.minDay.ToString() + ";");
sbStartupScript.AppendLine("$ddlMonth.find('option:lt('+minMonth+')').hide();");
sbStartupScript.AppendLine("if($ddlDay.val()<=minDay)");
sbStartupScript.AppendLine("$ddlDay.val(minDay);");
sbStartupScript.AppendLine("}");// end of if of minMonth
sbStartupScript.AppendLine("else {");
sbStartupScript.AppendLine("$ddlDay.find('option').show();");
sbStartupScript.AppendLine("}");// end of else part of min month
sbStartupScript.AppendLine("$ddlDay.find('option:lt('+minDay+')').hide();");
sbStartupScript.AppendLine("}");// end of if part of min Year
sbStartupScript.AppendLine("else {");
sbStartupScript.AppendLine("$ddlMonth.find('option').show();");
sbStartupScript.AppendLine("}");// end of else part of min Year
///set date in calendar
sbStartupScript.AppendLine();
sbStartupScript.Append("$('#" + this.DateControlClientId + "').datepick('setDate', new Date(\n\r\r ");
sbStartupScript.Append("$('#" + ddlYear.ClientID + "').val(),");
sbStartupScript.Append("$('#" + ddlMonth.ClientID + "').val()-1,");
sbStartupScript.Append("$('#" + ddlDay.ClientID + "').val()));");
sbStartupScript.AppendLine("} );");
//******************* When calendar changes then reflect it in dropdown
sbStartupScript.AppendLine("\r\n\r");
sbStartupScript.AppendLine("function DateSelectedFromCalendar(dates) {");
if (DisplayControl == DisplayControls.Dropdown)
sbStartupScript.AppendLine("$('#" + ddlDay.ClientID + "').val(dates.length ? dates[0].getDate() : '');");
sbStartupScript.AppendLine("$('#" + ddlMonth.ClientID + "').val(dates.length ? dates[0].getMonth() +1 : '');");
sbStartupScript.AppendLine("$('#" + ddlYear.ClientID + "').val(dates.length ? dates[0].getFullYear() : '');");
if (!string.IsNullOrEmpty(this.OnClientSelect))
sbStartupScript.AppendLine(this.OnClientSelect + "();");
sbStartupScript.AppendLine("}");
//******************* Validation Script
sbStartupScript.AppendLine("\r\n\r");
sbStartupScript.AppendLine("$('form').validate({");
sbStartupScript.AppendLine("errorPlacement: $.datepick.errorPlacement,");
sbStartupScript.AppendLine("rules: {");
sbStartupScript.AppendLine(this.DateControlClientId + ": {");//start of format picker
sbStartupScript.AppendLine("required: true, dpDate: true}");//end of formate picker
sbStartupScript.AppendLine("}, ");// end of rules
sbStartupScript.AppendLine("messages: {");
sbStartupScript.AppendLine(this.DateControlClientId + ": 'Please enter a valid date (" + this.DateTimeFormat + ")'");
sbStartupScript.AppendLine("}");// end of messages
sbStartupScript.AppendLine("});"); //end of validate function
//******************* close document ready function
sbStartupScript.AppendLine("} );");
return sbStartupScript.ToString();
/// <summary>
/// Fill day month and year dropdown
/// </summary>
private void FillDropdowns()
//Fill Day Dropdown
ListItem liDay = new ListItem("Day", "0");
ddlDay.Items.Add(liDay);
for (int i = 1; i <= 31; i++)
ListItem li = new ListItem(i.ToString(), i.ToString());
ddlDay.Items.Add(li);
//Fill Month Dropdown
ListItem liMonth = new ListItem("Month", "0");
ddlMonth.Items.Add(liMonth);
string monthName = string.Empty;
for (int i = 1; i <= 12; i++)
switch (DisplayMonthType)
case DisplayMonthTypes.Full:
monthName = CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(i);
break;
case DisplayMonthTypes.Short:
monthName = CultureInfo.CurrentCulture.DateTimeFormat.GetAbbreviatedMonthName(i);
break;
ListItem li = new ListItem(monthName, i.ToString());
ddlMonth.Items.Add(li);
//Fill Year Dropdown
ListItem liYear = new ListItem("Year", "0");
ddlYear.Items.Add(liYear);
string yearDisplay = string.Empty;
for (int i = MinYear; i <= MaxYear; i++)
switch (DisplayYearType)
case DisplayYearTypes.Full:
yearDisplay = i.ToString();
break;
case DisplayYearTypes.Short:
yearDisplay = i.ToString().Substring(2);
break;
ListItem li = new ListItem(yearDisplay, i.ToString());
ddlYear.Items.Add(li);
setDropDownValue(this.SelectedValue);
private void generateDisplayMessage()
if (this.DisplayMessageLable)
if (this.DisplayControl == DisplayControls.TextBox)
lblMsg.Text = this.DateTimeFormat;
if (this.MinDate != null && this.MinDate.Value != new DateTime())
lblMsg.Text += " From " + this.MinDate.Value.ToString(this.DateTimeFormat);
if (this.MaxDate != null && this.MaxDate.Value != new DateTime())
lblMsg.Text += " To " + this.MaxDate.Value.ToString(this.DateTimeFormat);
private void setDropDownValue(DateTime? dt)
if (ddlDay.Items.Count != 0 && ddlMonth.Items.Count != 0 && ddlYear.Items.Count != 0)
if (dt != null && dt != new DateTime())
ddlDay.SelectedValue = ddlDay.Items.FindByValue(dt.Value.Day.ToString()).Value;
ddlMonth.SelectedValue = ddlMonth.Items.FindByValue(dt.Value.Month.ToString()).Value;
ddlYear.SelectedValue = ddlYear.Items.FindByValue(dt.Value.Year.ToString()).Value;
else
ddlDay.SelectedValue = "0";
ddlMonth.SelectedValue = "0";
ddlYear.SelectedValue = "0";
#endregion
}Usage Of Code in .ascx<cc2:DateTimePicker ID="dtpDOB" DisplayType="Date" DisplayMode="ImageButton" ButtonImage="../Images/calendar.png" runat="server"Changing Value from .cs file dtpDOB.SelectedValue = DateTime.Parse("01/01/2001");It is not reflected in screen

Hello,
According to your code, it's an ASP.NET user control problem. Please post in
ASP.NET forums where more web developers will give you help.
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How to make my application programmatically switch between English and Russian

Greetings from Colorado...
My application needs to be switchable between English and Russian. Future languages to add are Spanish and Chinese. The user selects a language
from a control before starting the program and then the program changes the Captions, Boolean Texts, Graph Labels, and Enum Type Strings to the
chosen language. For Russian, this requires a different set of characters. I have made substantial progress by:
Control Panels>Region and Language>Keyboards and Languages>Change Keyboards added Russian>Keyboard>Russian on my development
computer.
In the LabVIEW.ini file, I added UseUnicode=TRUE (thanks to a suggestion found in this forum)
Made property nodes for controls and used properties such as Interpret As Unicode (True for Russian, False for English), Text, Font Name, Font Size, etc.
I have used fonts Arial and Arial CYR for Russian and MS Sans Serif for English
Set the keyboard for Russian and enter Cyrillic characters into text constants that are set for Arial or Arial CYR font. Sometimes one works and
sometimes the other works. As long as I set the font name in the property node the same way the text went into the text constant, it generally
works. I wish I could understand why one works sometimes and the other works other times!
I have had trouble with the Boolean Text going off-center when changing fonts and languages and it seems that by setting the Lock Text In Center
property to False and then True again, it seems to work. Often changing Boolean texts between short and long texts causes some of the long text
to be non-displayed; I have remedied this by explicitly setting the width of the Boolean text in a property node.
Often, the Russian text appears as gibberish with strange right-angle characters, :s, =s, and tiny numbers. I have been able to remedy this on my
development computer by ensuring that the text constant on the block diagram has the same size as the caption is supposed to have. This
is not necessary for normal programming in English, but it seems to help here. But it doesn't always solve the problem.
Sometimes the English text appears as Chinese gibberish in an Enum Type selection list or in a graph label. On my development computer,
it seems that making the text the last property to change helps here.
By changing the sequences of assignments to a single property node with a long list of properties, I have been able to make some of these
controls to switch between languages without gibberish showing up.
A few hours ago, I had the Russian strings in the Enum Type control working, except that when selecting from the available items, only the first
word of the Russian string was displayed. Two of the items start with the same word, so the user can't distinguish them.
At that time the English strings were appearing as Chinese gibberish while the list during the selection process displayed in English. As soon
as I changed the selection, future attempts to change the selection gave Chinese gibberish during the selection process, too. But this was only
a problem in the executable version; the source-code version worked fine.
In an attempt to get rid of the Chinese gibberish, I made new constants and retyped the items into them. This worked! But then, the Russian
stopped working and gave gibberish angles and tiny numbers, even though I didn't touch any of the code that sets the properties in Russian mode.
After trying a few sequences of setting the properties for the graph X label on page 2 of my tab control, this label started working correctly for both
languages. But the text of that label comes through on page 1 of the tab control, partly obscured by other controls on that page. After the
program runs a few more seconds, these shadows disappear.
Most times I restart LabVIEW, I get an error message saying there was a crash due to fontmgr.cpp, line 7494. But there actually wasn't a crash.
My computer has Windows 7 64-bit. Deployment Computer has Windows 7 32-bit. LabVIEW version is 8.5.
I have probably 50 or 100 more controls and indicators to change to language programmability and figuring out all this stuff for each one is
terribly time-consuming and there is no assurance that all of them will ever work.
At this point, I'm hoping that I am on an entirely wrong path and someone will send me a clue to get me on a path that is more predictable.
Thanks in advance to all who post ideas!
Cheers
Halden

Hi All,
I've made a lot of progress on this translation, but it's been really hard. There are lots of weird things going on that must be logical because they're in a computer, but I can't figure out what the logic is. When changing a font on a caption using the front panel, it sometimes changes the font on the caption and sometimes doesn't although the indicator always indicates the new font. Removing the first character of the unicode font string being sent to the caption seems to help...huh? Anyway, tabs still can't change language programmatically, and niether can ring controls (some kinds will take the new list of strings, but when selecting, they only display the first word of the string!). Boolean text can be reprogrammed, but only if the boolean text is set to be the same for both true and false states. When reprogramming captions on a non-displayed page of a multi-page tab-controlled user interface, the new text appears on the current page until I change pages back and forth. What a pain!
Sooo, NI....does LabVIEW 2011 have support for unicode fonts? Or, is there anything else in the new control style that will support programmatic language changing?
Halden

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